package com.kuangstudy.test;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Losca
 * @date 2022/3/30 23:05
 */
public class Demo10 {
    public static void main(String[] args) {
        List<String> a = null;
        test(a);
        System.out.println(a.size());
    }

    public static void test(List<String> a) {
        a = new ArrayList<String>();
        a.add("abc");
    }
}

